{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":5,"name":"Slingsby DART T.51","note":"","unit":"registered","url":"https://eflight.com/models/slingsby/dart-t-51"},{"count":46,"name":"Slingsby","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/slingsby"},{"count":null,"name":"Built of steel tube, wood and fabric","note":"as the model family is built; the register does not record it per aircraft","unit":"","url":"https://eflight.com/materials/steel-wood-fabric"}],"relation":"is a"},{"group":"Place","items":[{"count":1,"name":"Utica, PA","note":"","unit":"aircraft registered in this town","url":""},{"count":6182,"name":"Pennsylvania","note":"","unit":"aircraft registered","url":"https://eflight.com/states/PA"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"No NTSB accident or incident record under this tail number","note":"","unit":"","url":"https://eflight.com/aircraft/N531F#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":3,"name":"FAA orders naming the Slingsby DART T.51","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/slingsby/dart-t-51#airworthiness"},{"count":1,"name":"Approved modifications for the Slingsby DART T.51","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/slingsby/dart-t-51#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Slingsby DART T.51","note":"","unit":"","url":"https://eflight.com/models/slingsby/dart-t-51#accidents"},{"count":null,"name":"Accidents by model, with rates per thousand registered","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"}],"relation":"compared in"},{"group":"Live","items":[{"count":null,"name":"Where N531F is now","note":"","unit":"","url":"https://eflight.com/live?q=N531F"}],"relation":"seen at"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"built_of":{"inherited_from_model":true,"material":"steel-wood-fabric","name":"steel tube, wood and fabric","note":"A glider of wood and fabric, with a steel-tube fuselage frame on some versions."},"id":"N531F","maker":"Slingsby","model":"DART T.51","name":"Slingsby DART T.51 N531F","state":"PA","type":"aircraft","url":"https://eflight.com/aircraft/N531F","year_built":1966},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}